Help How to obtain Research Data? On older niche cards Sealdass folding Movie Charizard EX Sticker Sheet and other niche oversized cards/one sealed pack

[gatorholographics]

Hello, I have had some trouble grading some of my rarer cards and packs typically stating not enough info or more research required is there anyone on here willing to help me out? This is my fist post but I do have a pretty solid background on Sealddass / Carddass Bandai products. I will update the thread soon with pictures and any information I have found through research of my own. Its 4-5 different items that are all of my rarest unique niche stuff from Japan.

 

[bbb888]

These look like sticker sheets. I don't think grading companies usually don't grade these kinds of products, in the same way they don't grade physical code cards.
The ones with 1998 is the original Mewtwo Strikes Back movie and the other is the remake Mewtwo Strikes Back Evolution.
The first 2 pics are probably promotional stickers for Japanese XY Flashfire.